A flat-plate solar collector is used to heat water by having water flow through tube attached at the back of the thin solar absorber plate. the absorber plate has a surface area of 2 m with emissivityof and absorptivity of 0.9. the surface temperature of the absorber is 35 C, and solar radiation is incident on the absorber at 500 W/m with a surrounding temperature of 0 C. convection heat transfer coefficent at the absorber surface 5 w/m.k, while the ambient temperature is 25 C.net heat rate absorber by the solar collector heats the water from an inlet temperature (T in)to an outet temperature
. if the water flow rate is 5 g/s with a specific heat of 4.2 kj/kg.k, determine the
temperature rise of the water.